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Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 1525988268

Certificate GIA 1525988268

Diamond specifications and retailer prices

From $748 CAD
As of November 6, 2026
Save $257 CAD (26%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,005 CAD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1525988268. Listed at 3 retailers as of November 6, 2026, with prices from $748 to $1,005, a $257 spread on the same certified stone. 77 Diamonds lists it at $1,005. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1525988268
Dimensions4.77 × 5.64 × 3.34 mm
L/W Ratio1.18
Culet sizeNone
Key to symbols
Cloud
Top View
4.77 mm5.64 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1525988268
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,005 CAD|Low: $641 CAD|High: $1,006 CAD|Avg: $789 CAD|+5.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$716 CAD
Retailer 2$748 CAD
Retailer 3$800 CAD
77 Diamonds$1,005 CAD

35 data points across 4 retailers

3 retailers$748 CAD to $1,005 CAD

A
Cheapest Retailer
-
$748 CAD
Final sale: no returns
Retailer 2
-
$800 CAD
View
Price last confirmed 12 days ago
Most Expensive
B
77 Diamonds
HSCPANHNQQW2 · Nov 6
$1,005 CAD
£563 GBP
View
2 more retailers have this diamond
Prices start from $748 CADSave up to $257 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Heart
$748 CAD